.header-bottom{
	width: 100%;
	background-color: white;
	
}
.header-nav-menu{
	margin: 20px auto 0;
	width: 1280px;
	position: relative;
	left: 0;
	top: 0;
}
.header-nav{
	box-sizing: border-box;
	font-size: 0;
}
.header-nav li{
	display: inline-block;
	/*line-height: 80px;*/
	padding: 14px 0;
}
.header-nav li:nth-of-type(1){
	/*position: relative;*/
}
.xiala{
	margin-left: 15px;
}
.header-nav li.active{
	background-color: rgb(240,130,0);
}
.header-nav li.active a{
	color: white;
	border-right: none;
}
.header-nav li:hover{
	background-color: rgb(240,130,0);
}
.header-nav li:hover a{
	color: white;
	border-right: none;
}
.header-nav a{
	display: inline-block;
	width: 148px;
	/*padding: ;*/
	text-align: center;
	font-size: 16px;
	border-right: 1px solid #E8E8E8;
} 
.header-nav a:nth-of-type(1){
	display: inline-block;
	width: 168px;
}
.header-nav a.last{
	border-right: none;
}

/*隐藏的二级菜单*/
.nav-menu{
	width: 170px;
	position: absolute;
	left: 0;
	top: 50px;
	border-bottom: 1px solid #E8E8E8;
	display: none;
	background: white;
}
.nav-menu li{
	width: 100%;
	border-top: 1px solid #E8E8E8;
	text-align: center;
	padding: 15px 0;
}
.nav-menu li:hover{
	background-color: rgb(235,255,232);
}
.nav-menu li.active{
	background-color: rgb(235,255,232);
}
.nav-menu li a>img{
	vertical-align: middle;
	margin-right: 10px;
}

/*侧边栏隐藏的导航*/
.item-three{
	background-color: rgb(235,255,232);
	width: 460px;
	box-sizing: border-box;
	padding: 27.5px 40px;
	position: absolute;
	top: 50px;
	left: 170px;
	display: none;
}
.item-title li{
	margin-bottom: 49px;
}
.item-title li a{
	font-size: 18px;
	color: #498E3D;
}
.item-detail{
	width: 305px;
}
.item-detail-list{
	
}
.item-detail-list li{
	display: inline-block;
	font-size: 16px;
	color: #333;
	padding: 0 20px;
	border-right: 2px solid #333;
	margin-bottom: 15px;
}
.item-detail-list li:nth-of-type(4n){
	padding-right: 0;
	border-right: none;
}
.item-wrap{
	position: absolute;
    top: 0;
    left: 0;
    z-index: 1000;
    height: 498px;
}